AMD Radeon Sky 500 vs AMD Radeon RX 550 Mobile
GPU Specs Compare
Graphics Card
Release Date
Mar 2013
Jul 2017
Generation
Radeon Sky
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x8
Clock Speeds
Memory Clock
1200 MHz
1500 MHz
Base Clock
-
1100 MHz
Boost Clock
-
1287 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
153.6GB/s
96.00GB/s
Render Config
Compute Units
20
10
Shading Units
1280
640
TMUs
80
40
ROPs
32
16
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
20.59 GPixel/s
Texture Rate
76.00 GTexel/s
51.48 GTexel/s
FP32 (float)
2.432 TFLOPS
1.647 TFLOPS
FP64 (double)
152.0 GFLOPS
103.0 GFLOPS
FP16 (half)
-
1.647 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Lexa
GPU Variant
Pitcairn XT GL(215-0828073)
Lexa PRO(215-0904018)
Architecture
GCN 1.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
2.8 billion
2.2 billion
Die Size
212 mm²
103 mm²
Board Design
TDP
150W
50W
Suggested PSU
450 W
-
Outputs
1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.1
Vulkan
1.2
1.2
Shader Model
5.1
6.4